| 974 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 964 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 865 | A New Dictionary of Kanji Usage |
| 3281 | Classic Nelson (Andrew Nelson) |
| 940 | Essential Kanji (P.G. O’Neill) |
| 1583 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1117 | Japanese Names (P.G. O’Neill) |
| 807 | Kanji and Kana (Spahn and Hadamitzky) |
| 824 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1102 | Kanji in Context (Nishiguchi and Kono) |
| 1436 | Kodansha Compact Kanji Guide |
| 1490 | Kodansha Kanji Dictionary (Jack Halpern) |
| 787 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1074 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 913 | Les Kanjis dans la tete (Yves Maniette) |
| 24977 | Morohashi |
| 1159 | New Japanese English Character Dictionary (Jack Halpern) |
| 4140 | New Nelson (John Haig) |
| 904 | Remembering The Kanji (James Heisig) |
| 970 | Remembering The Kanji, 6th edition (James Heisig) |
| 915 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 6
JLPT level N1
862 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 秘 【ヒ】 secret, mystery
- 秘書 【ヒショ】 (private) secretary, treasured book, secret book
- 部外秘 【ブガイヒ】 restricted, confidential
- 社外秘 【シャガイヒ】 company secret
Kun reading compounds
- 秘める 【ひめる】 to hide, to keep to oneself
- 密か 【ひそか】 secret, private, surreptitious
Readings
- Korean:
- bi
Spanish
- secreto
- misterio
- mala evacuación
- esconder
- mantener en secreto
Portuguese
- segredo
- esconder
French
- garder secret
- cacher
| 2259 | 2001 Kanji |
| 5d5.6 | The Kanji Dictionary |
| 1-5-5 | SKIP code |
| 2390.0 | Four corner code |
| 1-40-75 | JIS X 0208-1997 kuten code |
| 79d8 | Unicode hex code |
Jōyō kanji, taught in grade 6
JLPT level N1
815 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 密 【ミツ】 dense, thick, crowded, close (relationship), intimate, minute, fine, careful, secret, esoteric Buddhism, secret Buddhist teachings
- 密度 【ミツド】 density
- 濃密 【ノウミツ】 thick, dense, rich (as in taste or content), deep (colour), strong (smell, scent), crowded
- 細密 【サイミツ】 detailed knowledge, finely detailed
Kun reading compounds
- 密か 【ひそか】 secret, private, surreptitious
- 密か事 【みそかごと】 secret, private matter, amorous affair, liaison
Readings
- Korean:
- mil
Spanish
- denso
- concentrado
- minucioso
- preciso
- en secreto
Portuguese
- segredo
- densidade
- pormenor
- cuidado
French
- secret
- densité (population)
- minutieux
- consciencieux
| 990 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 978 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 858 | A New Dictionary of Kanji Usage |
| 1316 | Classic Nelson (Andrew Nelson) |
| 1118 | Essential Kanji (P.G. O’Neill) |
| 1214 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1713 | Japanese Names (P.G. O’Neill) |
| 806 | Kanji and Kana (Spahn and Hadamitzky) |
| 822 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1103 | Kanji in Context (Nishiguchi and Kono) |
| 489 | Kodansha Compact Kanji Guide |
| 2857 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1474 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1984 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 782 | Les Kanjis dans la tete (Yves Maniette) |
| 7205 | Morohashi |
| 2292 | New Japanese English Character Dictionary (Jack Halpern) |
| 1343 | New Nelson (John Haig) |
| 775 | Remembering The Kanji (James Heisig) |
| 837 | Remembering The Kanji, 6th edition (James Heisig) |
| 933 | Tuttle Kanji Cards (Alexander Kask) |
| 776 | 2001 Kanji |
| 3m8.5 | The Kanji Dictionary |
| 2-3-8 | SKIP code |
| 3077.2 | Four corner code |
| 1-44-09 | JIS X 0208-1997 kuten code |
| 5bc6 | Unicode hex code |
Stroke order
On reading compounds
- 鍵 【ケン】 key (on a piano, organ, etc.)
- 鍵盤 【ケンバン】 keyboard (of a piano, typewriter, etc.)
- 打鍵 【ダケン】 keystroke
- 黒鍵 【コッケン】 black key (on a piano, organ, etc.)
Kun reading compounds
- 鍵 【かぎ】 key, lock, key (to a problem, success, etc.), clue
- 鍵垢 【かぎアカ】 private account (on social media, esp. Twitter), account that can only be viewed by approved followers
- 公開鍵 【こうかいかぎ】 public key
- 暗号鍵 【あんごうかぎ】 cryptographic key, encryption key
Readings
- Korean:
- geon
Spanish
- llave
- tecla (piano
- órgano
- etc.)
Portuguese
French
| 1824 | A New Dictionary of Kanji Usage |
| 4894 | Classic Nelson (Andrew Nelson) |
| 2652 | Japanese Names (P.G. O’Neill) |
| 915 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 2203 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1565 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 40654 | Morohashi |
| 1753 | New Japanese English Character Dictionary (Jack Halpern) |
| 6317 | New Nelson (John Haig) |
| 2761 | Remembering The Kanji (James Heisig) |
| 418 | Remembering The Kanji, 6th edition (James Heisig) |
| 8a8.18 | The Kanji Dictionary |
| 1-8-9 | SKIP code |
| 1-8-8 | SKIP code |
| 8514.0 | Four corner code |
| 1-24-16 | JIS X 0208-1997 kuten code |
| 9375 | Unicode hex code |